1998 ISUZU TROOPER wheel

6A2Ð 14 4JG2-NA/4JG2-TURBO ENGINE
8. Oil Return Pipe: Turbo (4JG2-T Only)
·Install oil return pipe with new gasket in
turbocharger and tighten joint bolt to the
specified torque.
7. Oil Feed Pipe: Turbo (4JG2-T Only)
·Apply about 100 cc engine oil to oil feed hose of
turbocharger housing before installing oil feed
pipe.
·Lubricate turbocharger securely by rotating
turbine shaft by hand.
·Install oil feed pipe with new gasket and tighten
joint bolt to the specified torque.
6. Water Inlet Pipe: Turbo (4JG2-T Only)
·Install water inlet pipe with new gasket and
tighten joint bolt to the specified torque.
4. Engine Ground Cable
3. P/S Pump Drive Belts
·Install drive belts, adjust belt tension by adjusting
bolt and tighten locking bolt to the specified
torque.
·Refer to drive belt adjustment steps in section 6B.
2. Intercooler Assembly (4JG2-T Only)
·Refer to intercooler installation steps in this
section.
1. Air Cleaner Cover & Air Duct (4JG2-T Only)
·Connect inlet and outlet connecting hoses and
tighten stay fixing bolts.
·Install right front tire.
·Fill coolant
·Install battery and connect battery cables.
5. A/C Compressor Assembly
·Tighten temporarily fixing bolts (front upper and
lower sides of compressor)
·Tighten fixing bolt (rear under side of
compressor) to the specified torque by using
along extension bar and torque wrench at under
side of wheel arch.
·Tighten fixing bolts (front upper and lower side of
compressor) to the specified torque.
8(0.8/6)N·m(Kg·m/lb·ft)
123 (2.3/17)229 (3.0/22)N·m(Kg·m/lb·ft)
8(0.8/6)N·m(Kg·m/lb·ft)
37 (3.8/27)N·m(Kg·m/lb·ft)

6A2 Ð 20 4JG2-NA/4JG2-TURBO ENGINE
4. Cranshaft Damper Pulley
Tighten the crankshaft damper pulley bolt to the specified
torque.
NOTE:
Hold the flywheel ring gear stationary to prevent the
crankshaft from turning when tightening the damper
pulley.
3. Cooling Fan Assembly
·Mount fan pulley, distance piece, and cooling fan
asm (in this order) on the water pump, and
tighten to the specified torque.
2. AC Generator Drive Belt
·Install AC Generator drive belt and adjust belt
tension.
·Refer to Drive Belt Adjustment in section 6B.
1. P/S Pump Drive Belt
·Install P.S pump drive belt and adjust belt tension.
·Refer to Drive Belt Adjustment in section 6B.
206(21/152)N·m(Kg·m/lb·ft)
206(21/152)N·m(Kg·m/lb·ft)

4JG2-NA/4JG2-TURBO ENGINE 6A 2Ð 27
REMOVAL
Preparation
·Remove battery. (two batteries for cold area)
·Disconnect window washer hose, and remove
engine hood.
·Drain coolant.
·Space stand and front right tire.
1. Radiator Hose : Upper
·Disconnect upper radiator hose from engine side.
2. Air Cleaner Cover & Air Duct
3. Intercooler Assembly (4JG2-T Only)
·(Refer to intercooler removal steps in this section)
4. Oil Level Gauge Guide Tube
5. P/S Pump
·Loosen P/S pump fixing bolts and adjusting bolt
and remove two drive belts.
·Remove two fixing bolts (front side). A fixing nut
(rear side) and support P/S pump asm with oil
hoses by tying to body side.
6. A/C Compressor Assembly
·Remove A/C compressor fixing bolt (rear under
side of compressor) by using a long extension bar
at under side of wheel arch.
·Disconnect magnetic clutch harness connector.
·Remove fixing bolts (upper and front lower side of
compressor) and set A/C compressor asm with
pipe line on battery carrier.
7. Water Hose; CSD
·Disconnect CSD water hoses from heater hose
side.
8. Engine Harness
·Disconnect five harness connectors from units on
thermostat housing.
9. Heater Hose: Rear Side
·Disconnect heater hose from heater pipe.
10. Water Bypass Hose
·Disconnect water bypass hose from water pump.
11. Water Inlet Hose: Turbo (4JG2-T Only)
·Disconnect from water outlet pipe of engine.
12 Water Outlet Hose: Turbo (4JG2-T Only)
·Disconnect from water inlet pipe of engine.
13 Oil Feed Pipe: Turbo (4JG2-T Only)
·Remove two joint bolts (from turbocharger and
cylinder block) and oil feed pipe.
14. Oil Return Pipe Fixing Nut (4JG2-T Only)
·Remove oil return pipe fixing nut from cylinder
block.
15. Oil Cooler Hose

6A2 Ð 30 4JG2-NA/4JG2-TURBO ENGINE
13. Oil Feed Pipe: Turbo (4JG2-T Only)
·Tighten joint bolts (cylinder block and turbo
charger side) to the specified torque.
12. Water Outlet Hose: Turbo (4JG2-T Only)
·Connect to water inlet pipe of engine.
11. Water Inlet Hose: Turbo (4JG2-T Only)
·Connect to water outlet pipe.
10. Water Bypass Hose
·Water bypass hose connect to water inlet pipe.
9. Heater Hose
·Connect to heater pipe.
8. Engine Harness
·Connect five harness connecters to units on
thermostat housing.
7. Water Hose: CSD
6. A/C Compressor
·Tighten temporarily fixing bolts (upper and front
lower sides of compressor.)
·Tighten fixing bolt (rear under side of compressor)
to the specified torque by using a long extension
bar and torque wrench at under side of wheel arch.
·Tighten fixing bolts (front upper and lower sides of
compressor) to the specified torque.
5. P/S Pump Drive Belt
·Install drive belts adjust belt tension by adjusting
bolt and tighten locking bolt to the specified
torque.
·Refer to ÒDrive Belt AdjustmentÓ in section 6B.
4. Oil Level Gauge Guide Tube
·Tighten guide tube to the specified torque.
23 (23/17)N·m (kg·m/lb·ft)
37 (3.8/27)N·m (kg·m/lb·ft)
40 (4.1/30)N·m (kg·m/lb·ft)
19 (1.9/14)N·m (kg·m/lb·ft)
3. Intercooler Assembly (4JG2-T Only)
·Refer to ÒDrive Belt AdjustmentÓ in section 6B.
2. Intake Air Duct (4JG2-T Only)
1. Radiator Hose Upper
·Connect to water outlet pipe.

6A2 Ð 40 4JG2-NA/4JG2-TURBO ENGINE
REMOVAL
1. Engine Assembly
·Refer to ÒEngine AssemblyÓ removal in this
section.
2. Crankshaft Damper Pulley
3. Timing Gear Case Cover
4. Oil Level Gauge and Guide Tube
5. Idler Gear
ÒBÓ and Shaft
6. Idler Gear
7. Injection Pump
8. Camshaft Timing Gear
9. Crankcase
10. Gear Case
11. Flywheel
12. Rear Plate
13. Connecting Rod Caps
14. Crankshaft Main Bearing Caps
15. Crankshaft and Main Bearings
INSTALLATION
15. Crankshaft and Main Bearings
·Install main bearings in the cylinder body and
main bearing cap respectively.
·Apply new engine oil to upper and lower main
bearings.
·Make sure that main bearing are in correct
position.
·Install crankshaft with care.
·Apply engine oil to the thrust washer.
·Install thrust washer on No. 3 journal.
Oil grooves in thrust washer must face the
crankshaft.
14. Crankshaft Main Bearing Caps
·Apply engine oil to the thread and seating surface
of each bearing cap fixing bolt.
·Install bearing caps in the order of numbers,
starting with cylinder body front side.
·Tighten main bearing fixing bolts to the specified
torque.

4JG2-NA/4JG2-TURBO ENGINE 6A2 Ð 41
19 (1.9/14)N·m(Kg·m/lb·ft)
·After tightening the bolts, make sure that the
crankshaft rotates smoothly.
167 (17.0/123)N·m(Kg·m/lb·ft)
13. Connecting Rod Caps
·The cap number must be same as connecting rod
number.
·Apply engine oil to the thread and sealing surface
of each nut.
·Tighten nuts to the specified torque.
·After tightening the nuts, make sure that the
crankshaft rotates smoothly.
12. Rear Plate
·Tighten bolts to the specified torque.
82 (80/61)N·m(Kg·m/lb·ft)
11. Flywheel
·Tighten bolts to the specified torque.
118 (12.0/87)N·m(Kg·m/lb·ft)
10. Gear Case
·Tighten fixing bolts to the specified torque.
19 (1.9/14)N·m(Kg·m/lb·ft)
9. Crankcase
·Remove oil from oil pan mounting surface, and
dry the surface.
·Apply a proper wide bead of sealant (TB1207C or
equivalent) to the crankcase mounting surface.
The bead must be continuous.
·Crankcase must be installed within 5 minutes
after sealant application.
·Tighten fixing bolts and nuts to the specified
torque.
Bolts
1st step 29 (3.0/22) 2nd step 45° – 60°N·m(Kg·m/lb·ft)

6A2 Ð 44 4JG2-NA/4JG2-TURBO ENGINE
3. Timing Gear Case Cover
1) Align the gear case with the timing gear case knock
pin and then install the timing gear case cover.
2) Tighten the gear case cover bolts to the specified
torque.
2. Crankshaft Damper Pulley
Tighten the crankshaft damper pulley bolt to the specified
torque.
NOTE:
Hold the flywheel ring gear stationary to prevent the
crankshaft from turning when tightening the damper
pulley.
1. Engine Assembly
8 (0.8/69)N·m(Kg·m/lb·in)
206 (21.0/152)N·m(Kg·m/lb·ft)

6A2 Ð 46 4JG2-NA/4JG2-TURBO ENGINE
REAR OIL SEAL
REMOVAL
1. Transmission Assembly
·Refer to ÒTransmissionÓ removal in section 7.
2. Flywheel
3. Rear Oil Seal
·With the oil seal pushed in deep, install the special
tool as shown in the illustration and remove the oil
seal.
Oil Seal Remover : 5-8840-2362-0
INSTALLATION
3. Rear Oil Seal
8. Crankshaft Rear Oil Seal
1) Tighten the adapter to the crankshaft rear and
section with 2 bolts.
2) Insert the oil seal into the peripheral section of the
adapter,
3) Insert the sleeve into the adapter section, and 1)
tighten it with a bolt (M12 x 1.75L = 70) until the
adapter section hits the sleeve.
4) Remove the adapter and the sleeve.
5) With the seal pressed in, check the dimension of
the oil seal section.
Standard Dimension = 12.5 ± 0.3 mm
Oil Seal Installer: 5-8840-2359-0